Come convertire il numero in parole in java

Attualmente disponiamo di un meccanismo grezzo per convertire i numeri in parole (ad esempio utilizzando alcuni array statici) e in base alla dimensione del numero che lo traduce in un testo inglese. Ma stiamo incontrando problemi per numeri che sono enormi.

10183 = Ten thousand one hundred eighty three 90 = Ninety 5888 = Five thousand eight hundred eighty eight 

C’è una funzione facile da usare in una qualsiasi delle librerie matematiche che posso usare per questo scopo?

Ecco il codice, non penso ci sia alcun metodo in SE.

In pratica converte il numero in stringa e analizza String e lo associa al peso

per esempio

 1000 

1 viene considerato come mille posizioni e 1 viene mappato su "one" e mille a causa della posizione

Questo è il codice dal sito web:

Inglese

 import java.text.DecimalFormat; public class EnglishNumberToWords { private static final String[] tensNames = { "", " ten", " twenty", " thirty", " forty", " fifty", " sixty", " seventy", " eighty", " ninety" }; private static final String[] numNames = { "", " one", " two", " three", " four", " five", " six", " seven", " eight", " nine", " ten", " eleven", " twelve", " thirteen", " fourteen", " fifteen", " sixteen", " seventeen", " eighteen", " nineteen" }; private EnglishNumberToWords() {} private static String convertLessThanOneThousand(int number) { String soFar; if (number % 100 < 20){ soFar = numNames[number % 100]; number /= 100; } else { soFar = numNames[number % 10]; number /= 10; soFar = tensNames[number % 10] + soFar; number /= 10; } if (number == 0) return soFar; return numNames[number] + " hundred" + soFar; } public static String convert(long number) { // 0 to 999 999 999 999 if (number == 0) { return "zero"; } String snumber = Long.toString(number); // pad with "0" String mask = "000000000000"; DecimalFormat df = new DecimalFormat(mask); snumber = df.format(number); // XXXnnnnnnnnn int billions = Integer.parseInt(snumber.substring(0,3)); // nnnXXXnnnnnn int millions = Integer.parseInt(snumber.substring(3,6)); // nnnnnnXXXnnn int hundredThousands = Integer.parseInt(snumber.substring(6,9)); // nnnnnnnnnXXX int thousands = Integer.parseInt(snumber.substring(9,12)); String tradBillions; switch (billions) { case 0: tradBillions = ""; break; case 1 : tradBillions = convertLessThanOneThousand(billions) + " billion "; break; default : tradBillions = convertLessThanOneThousand(billions) + " billion "; } String result = tradBillions; String tradMillions; switch (millions) { case 0: tradMillions = ""; break; case 1 : tradMillions = convertLessThanOneThousand(millions) + " million "; break; default : tradMillions = convertLessThanOneThousand(millions) + " million "; } result = result + tradMillions; String tradHundredThousands; switch (hundredThousands) { case 0: tradHundredThousands = ""; break; case 1 : tradHundredThousands = "one thousand "; break; default : tradHundredThousands = convertLessThanOneThousand(hundredThousands) + " thousand "; } result = result + tradHundredThousands; String tradThousand; tradThousand = convertLessThanOneThousand(thousands); result = result + tradThousand; // remove extra spaces! return result.replaceAll("^\\s+", "").replaceAll("\\b\\s{2,}\\b", " "); } /** * testing * @param args */ public static void main(String[] args) { System.out.println("*** " + EnglishNumberToWords.convert(0)); System.out.println("*** " + EnglishNumberToWords.convert(1)); System.out.println("*** " + EnglishNumberToWords.convert(16)); System.out.println("*** " + EnglishNumberToWords.convert(100)); System.out.println("*** " + EnglishNumberToWords.convert(118)); System.out.println("*** " + EnglishNumberToWords.convert(200)); System.out.println("*** " + EnglishNumberToWords.convert(219)); System.out.println("*** " + EnglishNumberToWords.convert(800)); System.out.println("*** " + EnglishNumberToWords.convert(801)); System.out.println("*** " + EnglishNumberToWords.convert(1316)); System.out.println("*** " + EnglishNumberToWords.convert(1000000)); System.out.println("*** " + EnglishNumberToWords.convert(2000000)); System.out.println("*** " + EnglishNumberToWords.convert(3000200)); System.out.println("*** " + EnglishNumberToWords.convert(700000)); System.out.println("*** " + EnglishNumberToWords.convert(9000000)); System.out.println("*** " + EnglishNumberToWords.convert(9001000)); System.out.println("*** " + EnglishNumberToWords.convert(123456789)); System.out.println("*** " + EnglishNumberToWords.convert(2147483647)); System.out.println("*** " + EnglishNumberToWords.convert(3000000010L)); /* *** zero *** one *** sixteen *** one hundred *** one hundred eighteen *** two hundred *** two hundred nineteen *** eight hundred *** eight hundred one *** one thousand three hundred sixteen *** one million *** two millions *** three millions two hundred *** seven hundred thousand *** nine millions *** nine millions one thousand *** one hundred twenty three millions four hundred ** fifty six thousand seven hundred eighty nine *** two billion one hundred forty seven millions ** four hundred eighty three thousand six hundred forty seven *** three billion ten **/ } } 

Français Molto diverso rispetto alla versione inglese, ma il francese è molto più difficile!

 package com.rgagnon.howto; import java.text.*; class FrenchNumberToWords { private static final String[] dizaineNames = { "", "", "vingt", "trente", "quarante", "cinquante", "soixante", "soixante", "quatre-vingt", "quatre-vingt" }; private static final String[] uniteNames1 = { "", "un", "deux", "trois", "quatre", "cinq", "six", "sept", "huit", "neuf", "dix", "onze", "douze", "treize", "quatorze", "quinze", "seize", "dix-sept", "dix-huit", "dix-neuf" }; private static final String[] uniteNames2 = { "", "", "deux", "trois", "quatre", "cinq", "six", "sept", "huit", "neuf", "dix" }; private FrenchNumberToWords() {} private static String convertZeroToHundred(int number) { int laDizaine = number / 10; int lUnite = number % 10; String resultat = ""; switch (laDizaine) { case 1 : case 7 : case 9 : lUnite = lUnite + 10; break; default: } // séparateur "-" "et" "" String laLiaison = ""; if (laDizaine > 1) { laLiaison = "-"; } // cas particuliers switch (lUnite) { case 0: laLiaison = ""; break; case 1 : if (laDizaine == 8) { laLiaison = "-"; } else { laLiaison = " et "; } break; case 11 : if (laDizaine==7) { laLiaison = " et "; } break; default: } // dizaines en lettres switch (laDizaine) { case 0: resultat = uniteNames1[lUnite]; break; case 8 : if (lUnite == 0) { resultat = dizaineNames[laDizaine]; } else { resultat = dizaineNames[laDizaine] + laLiaison + uniteNames1[lUnite]; } break; default : resultat = dizaineNames[laDizaine] + laLiaison + uniteNames1[lUnite]; } return resultat; } private static String convertLessThanOneThousand(int number) { int lesCentaines = number / 100; int leReste = number % 100; String sReste = convertZeroToHundred(leReste); String resultat; switch (lesCentaines) { case 0: resultat = sReste; break; case 1 : if (leReste > 0) { resultat = "cent " + sReste; } else { resultat = "cent"; } break; default : if (leReste > 0) { resultat = uniteNames2[lesCentaines] + " cent " + sReste; } else { resultat = uniteNames2[lesCentaines] + " cents"; } } return resultat; } public static String convert(long number) { // 0 à 999 999 999 999 if (number == 0) { return "zéro"; } String snumber = Long.toString(number); // pad des "0" String mask = "000000000000"; DecimalFormat df = new DecimalFormat(mask); snumber = df.format(number); // XXXnnnnnnnnn int lesMilliards = Integer.parseInt(snumber.substring(0,3)); // nnnXXXnnnnnn int lesMillions = Integer.parseInt(snumber.substring(3,6)); // nnnnnnXXXnnn int lesCentMille = Integer.parseInt(snumber.substring(6,9)); // nnnnnnnnnXXX int lesMille = Integer.parseInt(snumber.substring(9,12)); String tradMilliards; switch (lesMilliards) { case 0: tradMilliards = ""; break; case 1 : tradMilliards = convertLessThanOneThousand(lesMilliards) + " milliard "; break; default : tradMilliards = convertLessThanOneThousand(lesMilliards) + " milliards "; } String resultat = tradMilliards; String tradMillions; switch (lesMillions) { case 0: tradMillions = ""; break; case 1 : tradMillions = convertLessThanOneThousand(lesMillions) + " million "; break; default : tradMillions = convertLessThanOneThousand(lesMillions) + " millions "; } resultat = resultat + tradMillions; String tradCentMille; switch (lesCentMille) { case 0: tradCentMille = ""; break; case 1 : tradCentMille = "mille "; break; default : tradCentMille = convertLessThanOneThousand(lesCentMille) + " mille "; } resultat = resultat + tradCentMille; String tradMille; tradMille = convertLessThanOneThousand(lesMille); resultat = resultat + tradMille; return resultat; } public static void main(String[] args) { System.out.println("*** " + FrenchNumberToWords.convert(0)); System.out.println("*** " + FrenchNumberToWords.convert(9)); System.out.println("*** " + FrenchNumberToWords.convert(19)); System.out.println("*** " + FrenchNumberToWords.convert(21)); System.out.println("*** " + FrenchNumberToWords.convert(28)); System.out.println("*** " + FrenchNumberToWords.convert(71)); System.out.println("*** " + FrenchNumberToWords.convert(72)); System.out.println("*** " + FrenchNumberToWords.convert(80)); System.out.println("*** " + FrenchNumberToWords.convert(81)); System.out.println("*** " + FrenchNumberToWords.convert(89)); System.out.println("*** " + FrenchNumberToWords.convert(90)); System.out.println("*** " + FrenchNumberToWords.convert(91)); System.out.println("*** " + FrenchNumberToWords.convert(97)); System.out.println("*** " + FrenchNumberToWords.convert(100)); System.out.println("*** " + FrenchNumberToWords.convert(101)); System.out.println("*** " + FrenchNumberToWords.convert(110)); System.out.println("*** " + FrenchNumberToWords.convert(120)); System.out.println("*** " + FrenchNumberToWords.convert(200)); System.out.println("*** " + FrenchNumberToWords.convert(201)); System.out.println("*** " + FrenchNumberToWords.convert(232)); System.out.println("*** " + FrenchNumberToWords.convert(999)); System.out.println("*** " + FrenchNumberToWords.convert(1000)); System.out.println("*** " + FrenchNumberToWords.convert(1001)); System.out.println("*** " + FrenchNumberToWords.convert(10000)); System.out.println("*** " + FrenchNumberToWords.convert(10001)); System.out.println("*** " + FrenchNumberToWords.convert(100000)); System.out.println("*** " + FrenchNumberToWords.convert(2000000)); System.out.println("*** " + FrenchNumberToWords.convert(3000000000L)); System.out.println("*** " + FrenchNumberToWords.convert(2147483647)); /* *** OUTPUT *** zéro *** neuf *** dix-neuf *** vingt et un *** vingt-huit *** soixante et onze *** soixante-douze *** quatre-vingt *** quatre-vingt-un *** quatre-vingt-neuf *** quatre-vingt-dix *** quatre-vingt-onze *** quatre-vingt-dix-sept *** cent *** cent un *** cent dix *** cent vingt *** deux cents *** deux cent un *** deux cent trente-deux *** neuf cent quatre-vingt-dix-neuf *** mille *** mille un *** dix mille *** dix mille un *** cent mille *** deux millions *** trois milliards *** deux milliards cent quarante-sept millions ** quatre cent quatre-vingt-trois mille six cent quarante-sept */ } } 

Puoi gestire la conversione "dollar and cent" chiamando il metodo "convert" due volte.

 String phrase = "12345.67" ; Float num = new Float( phrase ) ; int dollars = (int)Math.floor( num ) ; int cent = (int)Math.floor( ( num - dollars ) * 100.0f ) ; String s = "$ " + EnglishNumberToWords.convert( dollars ) + " and " + EnglishNumberToWords.convert( cent ) + " cents" ; 

Un altro modo per utilizzare una funzione integrata del DBMS (se disponibile). Per Oracle

 SQL> select to_char(to_date(873,'J'), 'JSP') as converted_form from dual; CONVERTED_FORM --------------------------- EIGHT HUNDRED SEVENTY-THREE SQL> 'JSP' means : J : the Julian format. SP : spells the word for the number passed to to_date 

Perché non puoi avere un algoritmo generale per ogni locale, no. Devi implementare il tuo algoritmo per ogni locale che stai supportando.

** MODIFICA **

Solo per il gusto di farlo, ho giocato fino a quando ho ottenuto questa lezione. Non può visualizzare Long.MIN_VALUE causa di restrizioni di bit … ma presumo che potrebbe essere modificato e modificare long tipi di valore long da double per numeri decimali o anche maggiori Può visualizzare qualsiasi numero fino a 66 cifre e 26 decimali usando una rappresentazione a stringa del numero. Puoi aggiungere più ScaleUnit per più decimali …

 /** * This class will convert numeric values into an english representation * * For units, see : http://www.jimloy.com/math/billion.htm * * @author [email protected] */ public class NumberToWords { static public class ScaleUnit { private int exponent; private String[] names; private ScaleUnit(int exponent, String...names) { this.exponent = exponent; this.names = names; } public int getExponent() { return exponent; } public String getName(int index) { return names[index]; } } /** * See http://www.wordiq.com/definition/Names_of_large_numbers */ static private ScaleUnit[] SCALE_UNITS = new ScaleUnit[] { new ScaleUnit(63, "vigintillion", "decilliard"), new ScaleUnit(60, "novemdecillion", "decillion"), new ScaleUnit(57, "octodecillion", "nonilliard"), new ScaleUnit(54, "septendecillion", "nonillion"), new ScaleUnit(51, "sexdecillion", "octilliard"), new ScaleUnit(48, "quindecillion", "octillion"), new ScaleUnit(45, "quattuordecillion", "septilliard"), new ScaleUnit(42, "tredecillion", "septillion"), new ScaleUnit(39, "duodecillion", "sextilliard"), new ScaleUnit(36, "undecillion", "sextillion"), new ScaleUnit(33, "decillion", "quintilliard"), new ScaleUnit(30, "nonillion", "quintillion"), new ScaleUnit(27, "octillion", "quadrilliard"), new ScaleUnit(24, "septillion", "quadrillion"), new ScaleUnit(21, "sextillion", "trilliard"), new ScaleUnit(18, "quintillion", "trillion"), new ScaleUnit(15, "quadrillion", "billiard"), new ScaleUnit(12, "trillion", "billion"), new ScaleUnit(9, "billion", "milliard"), new ScaleUnit(6, "million", "million"), new ScaleUnit(3, "thousand", "thousand"), new ScaleUnit(2, "hundred", "hundred"), //new ScaleUnit(1, "ten", "ten"), //new ScaleUnit(0, "one", "one"), new ScaleUnit(-1, "tenth", "tenth"), new ScaleUnit(-2, "hundredth", "hundredth"), new ScaleUnit(-3, "thousandth", "thousandth"), new ScaleUnit(-4, "ten-thousandth", "ten-thousandth"), new ScaleUnit(-5, "hundred-thousandth", "hundred-thousandth"), new ScaleUnit(-6, "millionth", "millionth"), new ScaleUnit(-7, "ten-millionth", "ten-millionth"), new ScaleUnit(-8, "hundred-millionth", "hundred-millionth"), new ScaleUnit(-9, "billionth", "milliardth"), new ScaleUnit(-10, "ten-billionth", "ten-milliardth"), new ScaleUnit(-11, "hundred-billionth", "hundred-milliardth"), new ScaleUnit(-12, "trillionth", "billionth"), new ScaleUnit(-13, "ten-trillionth", "ten-billionth"), new ScaleUnit(-14, "hundred-trillionth", "hundred-billionth"), new ScaleUnit(-15, "quadrillionth", "billiardth"), new ScaleUnit(-16, "ten-quadrillionth", "ten-billiardth"), new ScaleUnit(-17, "hundred-quadrillionth", "hundred-billiardth"), new ScaleUnit(-18, "quintillionth", "trillionth"), new ScaleUnit(-19, "ten-quintillionth", "ten-trillionth"), new ScaleUnit(-20, "hundred-quintillionth", "hundred-trillionth"), new ScaleUnit(-21, "sextillionth", "trilliardth"), new ScaleUnit(-22, "ten-sextillionth", "ten-trilliardth"), new ScaleUnit(-23, "hundred-sextillionth", "hundred-trilliardth"), new ScaleUnit(-24, "septillionth","quadrillionth"), new ScaleUnit(-25, "ten-septillionth","ten-quadrillionth"), new ScaleUnit(-26, "hundred-septillionth","hundred-quadrillionth"), }; static public enum Scale { SHORT, LONG; public String getName(int exponent) { for (ScaleUnit unit : SCALE_UNITS) { if (unit.getExponent() == exponent) { return unit.getName(this.ordinal()); } } return ""; } } /** * Change this scale to support American and modern British value (short scale) * or Traditional British value (long scale) */ static public Scale SCALE = Scale.SHORT; static abstract public class AbstractProcessor { static protected final String SEPARATOR = " "; static protected final int NO_VALUE = -1; protected List getDigits(long value) { ArrayList digits = new ArrayList(); if (value == 0) { digits.add(0); } else { while (value > 0) { digits.add(0, (int) value % 10); value /= 10; } } return digits; } public String getName(long value) { return getName(Long.toString(value)); } public String getName(double value) { return getName(Double.toString(value)); } abstract public String getName(String value); } static public class UnitProcessor extends AbstractProcessor { static private final String[] TOKENS = new String[] { "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen" }; @Override public String getName(String value) { StringBuilder buffer = new StringBuilder(); int offset = NO_VALUE; int number; if (value.length() > 3) { number = Integer.valueOf(value.substring(value.length() - 3), 10); } else { number = Integer.valueOf(value, 10); } number %= 100; if (number < 10) { offset = (number % 10) - 1; //number /= 10; } else if (number < 20) { offset = (number % 20) - 1; //number /= 100; } if (offset != NO_VALUE && offset < TOKENS.length) { buffer.append(TOKENS[offset]); } return buffer.toString(); } } static public class TensProcessor extends AbstractProcessor { static private final String[] TOKENS = new String[] { "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety" }; static private final String UNION_SEPARATOR = "-"; private UnitProcessor unitProcessor = new UnitProcessor(); @Override public String getName(String value) { StringBuilder buffer = new StringBuilder(); boolean tensFound = false; int number; if (value.length() > 3) { number = Integer.valueOf(value.substring(value.length() - 3), 10); } else { number = Integer.valueOf(value, 10); } number %= 100; // keep only two digits if (number >= 20) { buffer.append(TOKENS[(number / 10) - 2]); number %= 10; tensFound = true; } else { number %= 20; } if (number != 0) { if (tensFound) { buffer.append(UNION_SEPARATOR); } buffer.append(unitProcessor.getName(number)); } return buffer.toString(); } } static public class HundredProcessor extends AbstractProcessor { private int EXPONENT = 2; private UnitProcessor unitProcessor = new UnitProcessor(); private TensProcessor tensProcessor = new TensProcessor(); @Override public String getName(String value) { StringBuilder buffer = new StringBuilder(); int number; if (value.isEmpty()) { number = 0; } else if (value.length() > 4) { number = Integer.valueOf(value.substring(value.length() - 4), 10); } else { number = Integer.valueOf(value, 10); } number %= 1000; // keep at least three digits if (number >= 100) { buffer.append(unitProcessor.getName(number / 100)); buffer.append(SEPARATOR); buffer.append(SCALE.getName(EXPONENT)); } String tensName = tensProcessor.getName(number % 100); if (!tensName.isEmpty() && (number >= 100)) { buffer.append(SEPARATOR); } buffer.append(tensName); return buffer.toString(); } } static public class CompositeBigProcessor extends AbstractProcessor { private HundredProcessor hundredProcessor = new HundredProcessor(); private AbstractProcessor lowProcessor; private int exponent; public CompositeBigProcessor(int exponent) { if (exponent <= 3) { lowProcessor = hundredProcessor; } else { lowProcessor = new CompositeBigProcessor(exponent - 3); } this.exponent = exponent; } public String getToken() { return SCALE.getName(getPartDivider()); } protected AbstractProcessor getHighProcessor() { return hundredProcessor; } protected AbstractProcessor getLowProcessor() { return lowProcessor; } public int getPartDivider() { return exponent; } @Override public String getName(String value) { StringBuilder buffer = new StringBuilder(); String high, low; if (value.length() < getPartDivider()) { high = ""; low = value; } else { int index = value.length() - getPartDivider(); high = value.substring(0, index); low = value.substring(index); } String highName = getHighProcessor().getName(high); String lowName = getLowProcessor().getName(low); if (!highName.isEmpty()) { buffer.append(highName); buffer.append(SEPARATOR); buffer.append(getToken()); if (!lowName.isEmpty()) { buffer.append(SEPARATOR); } } if (!lowName.isEmpty()) { buffer.append(lowName); } return buffer.toString(); } } static public class DefaultProcessor extends AbstractProcessor { static private String MINUS = "minus"; static private String UNION_AND = "and"; static private String ZERO_TOKEN = "zero"; private AbstractProcessor processor = new CompositeBigProcessor(63); @Override public String getName(String value) { boolean negative = false; if (value.startsWith("-")) { negative = true; value = value.substring(1); } int decimals = value.indexOf("."); String decimalValue = null; if (0 <= decimals) { decimalValue = value.substring(decimals + 1); value = value.substring(0, decimals); } String name = processor.getName(value); if (name.isEmpty()) { name = ZERO_TOKEN; } else if (negative) { name = MINUS.concat(SEPARATOR).concat(name); } if (!(null == decimalValue || decimalValue.isEmpty())) { name = name.concat(SEPARATOR).concat(UNION_AND).concat(SEPARATOR) .concat(processor.getName(decimalValue)) .concat(SEPARATOR).concat(SCALE.getName(-decimalValue.length())); } return name; } } static public AbstractProcessor processor; public static void main(String...args) { processor = new DefaultProcessor(); long[] values = new long[] { 0, 4, 10, 12, 100, 108, 299, 1000, 1003, 2040, 45213, 100000, 100005, 100010, 202020, 202022, 999999, 1000000, 1000001, 10000000, 10000007, 99999999, Long.MAX_VALUE, Long.MIN_VALUE }; String[] strValues = new String[] { "0001.2", "3.141592" }; for (long val : values) { System.out.println(val + " = " + processor.getName(val) ); } for (String strVal : strValues) { System.out.println(strVal + " = " + processor.getName(strVal) ); } // generate a very big number... StringBuilder bigNumber = new StringBuilder(); for (int d=0; d<66; d++) { bigNumber.append( (char) ((Math.random() * 10) + '0')); } bigNumber.append("."); for (int d=0; d<26; d++) { bigNumber.append( (char) ((Math.random() * 10) + '0')); } System.out.println(bigNumber.toString() + " = " + processor.getName(bigNumber.toString())); } } 

e un output di esempio (per il generatore casuale di numeri grandi)

 0 = zero 4 = four 10 = ten 12 = twelve 100 = one hundred 108 = one hundred eight 299 = two hundred ninety-nine 1000 = one thousand 1003 = one thousand three 2040 = two thousand fourty 45213 = fourty-five thousand two hundred thirteen 100000 = one hundred thousand 100005 = one hundred thousand five 100010 = one hundred thousand ten 202020 = two hundred two thousand twenty 202022 = two hundred two thousand twenty-two 999999 = nine hundred ninety-nine thousand nine hundred ninety-nine 1000000 = one million 1000001 = one million one 10000000 = ten million 10000007 = ten million seven 99999999 = ninety-nine million nine hundred ninety-nine thousand nine hundred ninety-nine 9223372036854775807 = nine quintillion two hundred twenty-three quadrillion three hundred seventy-two trillion thirty-six billion eight hundred fifty-four million seven hundred seventy-five thousand eight hundred seven -9223372036854775808 = minus nine quintillion two hundred twenty-three quadrillion three hundred seventy-two trillion thirty-six billion eight hundred fifty-four million seven hundred seventy-five thousand eight hundred eight 0001.2 = one and two tenth 3.141592 = three and one hundred fourty-one thousand five hundred ninety-two millionth 694780458103427072928672912656674465845126458162617425283733729646.85695031739734695391404376 = six hundred ninety-four vigintillion seven hundred eighty novemdecillion four hundred fifty-eight octodecillion one hundred three septendecillion four hundred twenty-seven sexdecillion seventy-two quindecillion nine hundred twenty-eight quattuordecillion six hundred seventy-two tredecillion nine hundred twelve duodecillion six hundred fifty-six undecillion six hundred seventy-four decillion four hundred sixty-five nonillion eight hundred fourty-five octillion one hundred twenty-six septillion four hundred fifty-eight sextillion one hundred sixty-two quintillion six hundred seventeen quadrillion four hundred twenty-five trillion two hundred eighty-three billion seven hundred thirty-three million seven hundred twenty-nine thousand six hundred fourty-six and eighty-five septillion six hundred ninety-five sextillion thirty-one quintillion seven hundred thirty-nine quadrillion seven hundred thirty-four trillion six hundred ninety-five billion three hundred ninety-one million four hundred four thousand three hundred seventy-six hundred-septillionth 

ICU4J contiene un buon supporto per il numero spellout. I file con le “regole” possono essere facilmente modificati e non è un problema aggiungere altre lingue (lo abbiamo fatto ad es. Per il polacco e il russo).

Penso che questa soluzione non sia la migliore, dal momento che funziona solo per int , ma penso che sia ottima per un principiante.

 public class NumberWordConverter { public static final String[] units = { "", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen" }; public static final String[] tens = { "", // 0 "", // 1 "twenty", // 2 "thirty", // 3 "forty", // 4 "fifty", // 5 "sixty", // 6 "seventy", // 7 "eighty", // 8 "ninety" // 9 }; public static String convert(final int n) { if (n < 0) { return "minus " + convert(-n); } if (n < 20) { return units[n]; } if (n < 100) { return tens[n / 10] + ((n % 10 != 0) ? " " : "") + units[n % 10]; } if (n < 1000) { return units[n / 100] + " hundred" + ((n % 100 != 0) ? " " : "") + convert(n % 100); } if (n < 1000000) { return convert(n / 1000) + " thousand" + ((n % 1000 != 0) ? " " : "") + convert(n % 1000); } if (n < 1000000000) { return convert(n / 1000000) + " million" + ((n % 1000000 != 0) ? " " : "") + convert(n % 1000000); } return convert(n / 1000000000) + " billion" + ((n % 1000000000 != 0) ? " " : "") + convert(n % 1000000000); } public static void main(final String[] args) { final Random generator = new Random(); int n; for (int i = 0; i < 20; i++) { n = generator.nextInt(Integer.MAX_VALUE); System.out.printf("%10d = '%s'%n", n, convert(n)); } n = 1000; System.out.printf("%10d = '%s'%n", n, convert(n)); n = 2000; System.out.printf("%10d = '%s'%n", n, convert(n)); n = 10000; System.out.printf("%10d = '%s'%n", n, convert(n)); n = 11000; System.out.printf("%10d = '%s'%n", n, convert(n)); n = 999999999; System.out.printf("%10d = '%s'%n", n, convert(n)); n = Integer.MAX_VALUE; System.out.printf("%10d = '%s'%n", n, convert(n)); } } 

Il test crea 20 numeri casuali fino a Integer.MAX_VALUE e alcuni che sanno essere problematici, a causa di 0, 10, ecc. Output:

  5599908 = 'five million five hundred ninety nine thousand nine hundred eight' 192603486 = 'one hundred ninety two million six hundred three thousand four hundred eighty six' 1392431868 = 'one billion three hundred ninety two million four hundred thirty one thousand eight hundred sixty eight' 1023787010 = 'one billion twenty three million seven hundred eighty seven thousand ten' 1364396236 = 'one billion three hundred sixty four million three hundred ninety six thousand two hundred thirty six' 1511255671 = 'one billion five hundred eleven million two hundred fifty five thousand six hundred seventy one' 225955221 = 'two hundred twenty five million nine hundred fifty five thousand two hundred twenty one' 1890141052 = 'one billion eight hundred ninety million one hundred forty one thousand fifty two' 261839422 = 'two hundred sixty one million eight hundred thirty nine thousand four hundred twenty two' 728428650 = 'seven hundred twenty eight million four hundred twenty eight thousand six hundred fifty' 860607319 = 'eight hundred sixty million six hundred seven thousand three hundred nineteen' 719753587 = 'seven hundred nineteen million seven hundred fifty three thousand five hundred eighty seven' 2063829124 = 'two billion sixty three million eight hundred twenty nine thousand one hundred twenty four' 1081010996 = 'one billion eighty one million ten thousand nine hundred ninety six' 999215799 = 'nine hundred ninety nine million two hundred fifteen thousand seven hundred ninety nine' 2105226236 = 'two billion one hundred five million two hundred twenty six thousand two hundred thirty six' 1431882940 = 'one billion four hundred thirty one million eight hundred eighty two thousand nine hundred forty' 1991707241 = 'one billion nine hundred ninety one million seven hundred seven thousand two hundred forty one' 1088301563 = 'one billion eighty eight million three hundred one thousand five hundred sixty three' 964601609 = 'nine hundred sixty four million six hundred one thousand six hundred nine' 1000 = 'one thousand' 2000 = 'two thousand' 10000 = 'ten thousand' 11000 = 'eleven thousand' 999999999 = 'nine hundred ninety nine million nine hundred ninety nine thousand nine hundred ninety nine' 2147483647 = 'two billion one hundred forty seven million four hundred eighty three thousand six hundred forty seven' 

Spero che sia d'aiuto 🙂

 /** This Program will display the given number in words from 0 to 999999999 @author Manoj Kumar Dunna Mail Id : [email protected] **/ import java.util.Scanner; class NumberToString { public enum hundreds {OneHundred, TwoHundred, ThreeHundred, FourHundred, FiveHundred, SixHundred, SevenHundred, EightHundred, NineHundred} public enum tens {Twenty, Thirty, Forty, Fifty, Sixty, Seventy, Eighty, Ninety} public enum ones {One, Two, Three, Four, Five, Six, Seven, Eight, Nine} public enum denom {Thousand, Lakhs, Crores} public enum splNums { Ten, Eleven, Twelve, Thirteen, Fourteen, Fifteen, Sixteen, Seventeen, Eighteen, Nineteen} public static String text = ""; public static void main(String[] args) { System.out.println("Enter Number to convert into words"); Scanner sc = new Scanner(System.in); long num = sc.nextInt(); int rem = 0; int i = 0; while(num > 0) { if(i == 0){ rem = (int) (num % 1000); printText(rem); num = num / 1000; i++; } else if(num > 0) { rem = (int) (num % 100); if(rem > 0) text = denom.values()[i - 1]+ " " + text; printText(rem); num = num / 100; i++; } } if(i > 0) System.out.println(text); else System.out.println("Zero"); } public static void printText(int num) { if(!(num > 9 && num < 19)) { if(num % 10 > 0) getOnes(num % 10); num = num / 10; if(num % 10 > 0) getTens(num % 10); num = num / 10; if(num > 0) getHundreds(num); } else { getSplNums(num % 10); } } public static void getSplNums(int num) { text = splNums.values()[num]+ " " + text; } public static void getHundreds(int num) { text = hundreds.values()[num - 1]+ " " + text; } public static void getTens(int num) { text = tens.values()[num - 2]+ " " + text; } public static void getOnes(int num) { text = ones.values()[num - 1]+ " " + text; } } 

Take a look at Tradukisto . It’s a Java library I’ve written which does the job.

In this post i have just update Yanick Rochon’s code. I have make it workable with lower version of java 1.6 and i was getting the output for 1.00 = one and hundredth . So i have update the code. New i get the output for 1.00 = one and zero hundredth .

I don’t not what should i do. Add a new answer or edit that post. As the answer is highly ranked so i have made a new post with updating the code. I have just change this two things have mention above.

 /** * This class will convert numeric values into an english representation * * For units, see : http://www.jimloy.com/math/billion.htm * * @author [email protected] */ public class NumberToWords { static public class ScaleUnit { private int exponent; private String[] names; private ScaleUnit(int exponent, String... names) { this.exponent = exponent; this.names = names; } public int getExponent() { return exponent; } public String getName(int index) { return names[index]; } } /** * See http://www.wordiq.com/definition/Names_of_large_numbers */ static private ScaleUnit[] SCALE_UNITS = new ScaleUnit[] { new ScaleUnit(63, "vigintillion", "decilliard"), new ScaleUnit(60, "novemdecillion", "decillion"), new ScaleUnit(57, "octodecillion", "nonilliard"), new ScaleUnit(54, "septendecillion", "nonillion"), new ScaleUnit(51, "sexdecillion", "octilliard"), new ScaleUnit(48, "quindecillion", "octillion"), new ScaleUnit(45, "quattuordecillion", "septilliard"), new ScaleUnit(42, "tredecillion", "septillion"), new ScaleUnit(39, "duodecillion", "sextilliard"), new ScaleUnit(36, "undecillion", "sextillion"), new ScaleUnit(33, "decillion", "quintilliard"), new ScaleUnit(30, "nonillion", "quintillion"), new ScaleUnit(27, "octillion", "quadrilliard"), new ScaleUnit(24, "septillion", "quadrillion"), new ScaleUnit(21, "sextillion", "trilliard"), new ScaleUnit(18, "quintillion", "trillion"), new ScaleUnit(15, "quadrillion", "billiard"), new ScaleUnit(12, "trillion", "billion"), new ScaleUnit(9, "billion", "milliard"), new ScaleUnit(6, "million", "million"), new ScaleUnit(3, "thousand", "thousand"), new ScaleUnit(2, "hundred", "hundred"), // new ScaleUnit(1, "ten", "ten"), // new ScaleUnit(0, "one", "one"), new ScaleUnit(-1, "tenth", "tenth"), new ScaleUnit(-2, "hundredth", "hundredth"), new ScaleUnit(-3, "thousandth", "thousandth"), new ScaleUnit(-4, "ten-thousandth", "ten-thousandth"), new ScaleUnit(-5, "hundred-thousandth", "hundred-thousandth"), new ScaleUnit(-6, "millionth", "millionth"), new ScaleUnit(-7, "ten-millionth", "ten-millionth"), new ScaleUnit(-8, "hundred-millionth", "hundred-millionth"), new ScaleUnit(-9, "billionth", "milliardth"), new ScaleUnit(-10, "ten-billionth", "ten-milliardth"), new ScaleUnit(-11, "hundred-billionth", "hundred-milliardth"), new ScaleUnit(-12, "trillionth", "billionth"), new ScaleUnit(-13, "ten-trillionth", "ten-billionth"), new ScaleUnit(-14, "hundred-trillionth", "hundred-billionth"), new ScaleUnit(-15, "quadrillionth", "billiardth"), new ScaleUnit(-16, "ten-quadrillionth", "ten-billiardth"), new ScaleUnit(-17, "hundred-quadrillionth", "hundred-billiardth"), new ScaleUnit(-18, "quintillionth", "trillionth"), new ScaleUnit(-19, "ten-quintillionth", "ten-trillionth"), new ScaleUnit(-20, "hundred-quintillionth", "hundred-trillionth"), new ScaleUnit(-21, "sextillionth", "trilliardth"), new ScaleUnit(-22, "ten-sextillionth", "ten-trilliardth"), new ScaleUnit(-23, "hundred-sextillionth", "hundred-trilliardth"), new ScaleUnit(-24, "septillionth", "quadrillionth"), new ScaleUnit(-25, "ten-septillionth", "ten-quadrillionth"), new ScaleUnit(-26, "hundred-septillionth", "hundred-quadrillionth"), }; static public enum Scale { SHORT, LONG; public String getName(int exponent) { for (ScaleUnit unit : SCALE_UNITS) { if (unit.getExponent() == exponent) { return unit.getName(this.ordinal()); } } return ""; } } /** * Change this scale to support American and modern British value (short scale) or Traditional * British value (long scale) */ static public Scale SCALE = Scale.SHORT; static abstract public class AbstractProcessor { static protected final String SEPARATOR = " "; static protected final int NO_VALUE = -1; protected List getDigits(long value) { ArrayList digits = new ArrayList(); if (value == 0) { digits.add(0); } else { while (value > 0) { digits.add(0, (int) value % 10); value /= 10; } } return digits; } public String getName(long value) { return getName(Long.toString(value)); } public String getName(double value) { return getName(Double.toString(value)); } abstract public String getName(String value); } static public class UnitProcessor extends AbstractProcessor { static private final String[] TOKENS = new String[] { "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen" }; @Override public String getName(String value) { StringBuilder buffer = new StringBuilder(); int offset = NO_VALUE; int number; if (value.length() > 3) { number = Integer.valueOf(value.substring(value.length() - 3), 10); } else { number = Integer.valueOf(value, 10); } number %= 100; if (number < 10) { offset = (number % 10) - 1; // number /= 10; } else if (number < 20) { offset = (number % 20) - 1; // number /= 100; } if (offset != NO_VALUE && offset < TOKENS.length) { buffer.append(TOKENS[offset]); } return buffer.toString(); } } static public class TensProcessor extends AbstractProcessor { static private final String[] TOKENS = new String[] { "twenty", "thirty", "fourty", "fifty", "sixty", "seventy", "eighty", "ninety" }; static private final String UNION_SEPARATOR = "-"; private UnitProcessor unitProcessor = new UnitProcessor(); @Override public String getName(String value) { StringBuilder buffer = new StringBuilder(); boolean tensFound = false; int number; if (value.length() > 3) { number = Integer.valueOf(value.substring(value.length() - 3), 10); } else { number = Integer.valueOf(value, 10); } number %= 100; // keep only two digits if (number >= 20) { buffer.append(TOKENS[(number / 10) - 2]); number %= 10; tensFound = true; } else { number %= 20; } if (number != 0) { if (tensFound) { buffer.append(UNION_SEPARATOR); } buffer.append(unitProcessor.getName(number)); } return buffer.toString(); } } static public class HundredProcessor extends AbstractProcessor { private int EXPONENT = 2; private UnitProcessor unitProcessor = new UnitProcessor(); private TensProcessor tensProcessor = new TensProcessor(); @Override public String getName(String value) { StringBuilder buffer = new StringBuilder(); int number; if ("".equals(value)) { number = 0; } else if (value.length() > 4) { number = Integer.valueOf(value.substring(value.length() - 4), 10); } else { number = Integer.valueOf(value, 10); } number %= 1000; // keep at least three digits if (number >= 100) { buffer.append(unitProcessor.getName(number / 100)); buffer.append(SEPARATOR); buffer.append(SCALE.getName(EXPONENT)); } String tensName = tensProcessor.getName(number % 100); if (!"".equals(tensName) && (number >= 100)) { buffer.append(SEPARATOR); } buffer.append(tensName); return buffer.toString(); } } static public class CompositeBigProcessor extends AbstractProcessor { private HundredProcessor hundredProcessor = new HundredProcessor(); private AbstractProcessor lowProcessor; private int exponent; public CompositeBigProcessor(int exponent) { if (exponent <= 3) { lowProcessor = hundredProcessor; } else { lowProcessor = new CompositeBigProcessor(exponent - 3); } this.exponent = exponent; } public String getToken() { return SCALE.getName(getPartDivider()); } protected AbstractProcessor getHighProcessor() { return hundredProcessor; } protected AbstractProcessor getLowProcessor() { return lowProcessor; } public int getPartDivider() { return exponent; } @Override public String getName(String value) { StringBuilder buffer = new StringBuilder(); String high, low; if (value.length() < getPartDivider()) { high = ""; low = value; } else { int index = value.length() - getPartDivider(); high = value.substring(0, index); low = value.substring(index); } String highName = getHighProcessor().getName(high); String lowName = getLowProcessor().getName(low); if (!"".equals(highName)) { buffer.append(highName); buffer.append(SEPARATOR); buffer.append(getToken()); if (!"".equals(lowName)) { buffer.append(SEPARATOR); } } if (!"".equals(lowName)) { buffer.append(lowName); } return buffer.toString(); } } static public class DefaultProcessor extends AbstractProcessor { static private String MINUS = "minus"; static private String UNION_AND = "and"; static private String ZERO_TOKEN = "zero"; private AbstractProcessor processor = new CompositeBigProcessor(63); @Override public String getName(String value) { boolean negative = false; if (value.startsWith("-")) { negative = true; value = value.substring(1); } int decimals = value.indexOf("."); String decimalValue = null; if (0 <= decimals) { decimalValue = value.substring(decimals + 1); value = value.substring(0, decimals); } String name = processor.getName(value); if ("".equals(name)) { name = ZERO_TOKEN; } else if (negative) { name = MINUS.concat(SEPARATOR).concat(name); } if (!(null == decimalValue || "".equals(decimalValue))) { String zeroDecimalValue = ""; for (int i = 0; i < decimalValue.length(); i++) { zeroDecimalValue = zeroDecimalValue + "0"; } if (decimalValue.equals(zeroDecimalValue)) { name = name.concat(SEPARATOR).concat(UNION_AND).concat(SEPARATOR).concat( "zero").concat(SEPARATOR).concat( SCALE.getName(-decimalValue.length())); } else { name = name.concat(SEPARATOR).concat(UNION_AND).concat(SEPARATOR).concat( processor.getName(decimalValue)).concat(SEPARATOR).concat( SCALE.getName(-decimalValue.length())); } } return name; } } static public AbstractProcessor processor; public static void main(String... args) { processor = new DefaultProcessor(); long[] values = new long[] { 0, 4, 10, 12, 100, 108, 299, 1000, 1003, 2040, 45213, 100000, 100005, 100010, 202020, 202022, 999999, 1000000, 1000001, 10000000, 10000007, 99999999, Long.MAX_VALUE, Long.MIN_VALUE }; String[] strValues = new String[] { "0", "1.30", "0001.00", "3.141592" }; for (long val : values) { System.out.println(val + " = " + processor.getName(val)); } for (String strVal : strValues) { System.out.println(strVal + " = " + processor.getName(strVal)); } // generate a very big number... StringBuilder bigNumber = new StringBuilder(); for (int d = 0; d < 66; d++) { bigNumber.append((char) ((Math.random() * 10) + '0')); } bigNumber.append("."); for (int d = 0; d < 26; d++) { bigNumber.append((char) ((Math.random() * 10) + '0')); } System.out.println(bigNumber.toString() + " = " + processor.getName(bigNumber.toString())); } } 

L'output è

 0 = zero 4 = four 10 = ten 12 = twelve 100 = one hundred 108 = one hundred eight 299 = two hundred ninety-nine 1000 = one thousand 1003 = one thousand three 2040 = two thousand fourty 45213 = fourty-five thousand two hundred thirteen 100000 = one hundred thousand 100005 = one hundred thousand five 100010 = one hundred thousand ten 202020 = two hundred two thousand twenty 202022 = two hundred two thousand twenty-two 999999 = nine hundred ninety-nine thousand nine hundred ninety-nine 1000000 = one million 1000001 = one million one 10000000 = ten million 10000007 = ten million seven 99999999 = ninety-nine million nine hundred ninety-nine thousand nine hundred ninety-nine 9223372036854775807 = nine quintillion two hundred twenty-three quadrillion three hundred seventy-two trillion thirty-six billion eight hundred fifty-four million seven hundred seventy-five thousand eight hundred seven -9223372036854775808 = minus nine quintillion two hundred twenty-three quadrillion three hundred seventy-two trillion thirty-six billion eight hundred fifty-four million seven hundred seventy-five thousand eight hundred eight 0.0 = zero and zero tenth 1.30 = one and thirty hundredth 0001.00 = one and zero hundredth 3.141592 = three and one hundred fourty-one thousand five hundred ninety-two millionth 354064188376576616844741830273568537829518115677552666352927559274.76892492652888527014418647 = three hundred fifty-four vigintillion sixty-four novemdecillion one hundred eighty-eight octodecillion three hundred seventy-six septendecillion five hundred seventy-six sexdecillion six hundred sixteen quindecillion eight hundred fourty-four quattuordecillion seven hundred fourty-one tredecillion eight hundred thirty duodecillion two hundred seventy-three undecillion five hundred sixty-eight decillion five hundred thirty-seven nonillion eight hundred twenty-nine octillion five hundred eighteen septillion one hundred fifteen sextillion six hundred seventy-seven quintillion five hundred fifty-two quadrillion six hundred sixty-six trillion three hundred fifty-two billion nine hundred twenty-seven million five hundred fifty-nine thousand two hundred seventy-four and seventy-six septillion eight hundred ninety-two sextillion four hundred ninety-two quintillion six hundred fifty-two quadrillion eight hundred eighty-eight trillion five hundred twenty-seven billion fourteen million four hundred eighteen thousand six hundred fourty-seven hundred-septillionth 
 package it.tommasoresti.facebook; class NumbersToWords { private static final String ZERO = "zero"; private static String[] oneToNine = { "one", "two", "three", "four", "five", "six", "seven", "height", "nine" }; private static String[] tenToNinteen = { "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen" }; private static String[] dozens = { "ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety" }; public static String solution(int number) { if(number == 0) return ZERO; return generate(number).trim(); } public static String generate(int number) { if(number >= 1000000000) { return generate(number / 1000000000) + " billion " + generate(number % 1000000000); } else if(number >= 1000000) { return generate(number / 1000000) + " million " + generate(number % 1000000); } else if(number >= 1000) { return generate(number / 1000) + " thousand " + generate(number % 1000); } else if(number >= 100) { return generate(number / 100) + " hundred " + generate(number % 100); } return generate1To99(number); } private static String generate1To99(int number) { if (number == 0) return ""; if (number <= 9) return oneToNine[number - 1]; else if (number <= 19) return tenToNinteen[number % 10]; else { return dozens[number / 10 - 1] + " " + generate1To99(number % 10); } } } 

Test

 @Test public void given_a_complex_number() throws Exception { assertThat(solution(1234567890), is("one billion two hundred thirty four million five hundred sixty seven thousand height hundred ninety")); } 

I think this may help you…programme is very simple and works fine

 import java.util.*; public class NumberToWord { public void pw(int n, String ch) { String one[] = { " ", " one", " two", " three", " four", " five", " six", " seven", " eight", " Nine", " ten", " eleven", " twelve", " thirteen", " fourteen", "fifteen", " sixteen", " seventeen", " eighteen", " nineteen" }; String ten[] = { " ", " ", " twenty", " thirty", " forty", " fifty", " sixty", "seventy", " eighty", " ninety" }; if (n > 19) { System.out.print(ten[n / 10] + " " + one[n % 10]); } else { System.out.print(one[n]); } if (n > 0) System.out.print(ch); } public static void main(String[] args) { int n = 0; Scanner s = new Scanner(System.in); System.out.print("Enter an integer number: "); n = s.nextInt(); if (n <= 0) System.out.print("Enter numbers greater than 0"); else { NumberToWord a = new NumberToWord(); System.out.print("After conversion number in words is :"); a.pw((n / 1000000000), " Hundred"); a.pw((n / 10000000) % 100, " crore"); a.pw(((n / 100000) % 100), " lakh"); a.pw(((n / 1000) % 100), " thousand"); a.pw(((n / 100) % 10), " hundred"); a.pw((n % 100), " "); } } } 

You can use RuleBasedNumberFormat. for example result will give you Ninety

 ULocale locale = new ULocale(Locale.US); //us english Double d = Double.parseDouble(90); NumberFormat formatter = new RuleBasedNumberFormat(locale, RuleBasedNumberFormat.SPELLOUT); String result = formatter.format(d); 

It supports a wide range of languages.

I have written a clean version for 32-bit integers and american English:

http://www.source-code.biz/snippets/java/13.htm

 /* this program will display number in words for eg. if you enter 101,it will show "ONE HUNDRED AND ONE"*/ import java.util.*; public class NumToWords { String string; String st1[] = { "", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", }; String st2[] = { "hundred", "thousand", "lakh", "crore" }; String st3[] = { "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "ninteen", }; String st4[] = { "twenty", "thirty", "fourty", "fifty", "sixty", "seventy", "eighty", "ninety" }; public String convert(int number) { int n = 1; int word; string = ""; while (number != 0) { switch (n) { case 1: word = number % 100; pass(word); if (number > 100 && number % 100 != 0) { show("and "); //System.out.print("ankit"); } number /= 100; break; case 2: word = number % 10; if (word != 0) { show(" "); show(st2[0]); show(" "); pass(word); } number /= 10; break; case 3: word = number % 100; if (word != 0) { show(" "); show(st2[1]); show(" "); pass(word); } number /= 100; break; case 4: word = number % 100; if (word != 0) { show(" "); show(st2[2]); show(" "); pass(word); } number /= 100; break; case 5: word = number % 100; if (word != 0) { show(" "); show(st2[3]); show(" "); pass(word); } number /= 100; break; } n++; } return string; } public void pass(int number) { int word, q; if (number < 10) { show(st1[number]); } if (number > 9 && number < 20) { show(st3[number - 10]); } if (number > 19) { word = number % 10; if (word == 0) { q = number / 10; show(st4[q - 2]); } else { q = number / 10; show(st1[word]); show(" "); show(st4[q - 2]); } } } public void show(String s) { String st; st = string; string = s; string += st; } public static void main(String[] args) { NumToWords w = new NumToWords(); Scanner input = new Scanner(System.in); System.out.print("Enter Number: "); int num = input.nextInt(); String inwords = w.convert(num); System.out.println(inwords); } } 

Just uploaded an extensible version! NumberReader @ SourceForge

This is another way…(with limited range)

 public static String numToWord(Integer i) { final String[] units = { "Zero", "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine", "Ten", "Eleven", "Twelve", "Thirteen", "Fourteen", "Fifteen", "Sixteen", "Seventeen", "Eighteen", "Nineteen" }; final String[] tens = { "", "", "Twenty", "Thirty", "Forty", "Fifty", "Sixty", "Seventy", "Eighty", "Ninety" }; if (i < 20) return units[i]; if (i < 100) return tens[i / 10] + ((i % 10 > 0) ? " " + numToWord(i % 10) : ""); if (i < 1000) return units[i / 100] + " Hundred" + ((i % 100 > 0) ? " and " + numToWord(i % 100) : ""); if (i < 1000000) return numToWord(i / 1000) + " Thousand " + ((i % 1000 > 0) ? " " + numToWord(i % 1000) : ""); return numToWord(i / 1000000) + " Million " + ((i % 1000000 > 0) ? " " + numToWord(i % 1000000) : ""); } 
 import java.util.*; public class NumberToWord { public void numberToword(int n, String ch) { String one[] = {" ", " one", " two", " three", " four", " five", " six", " seven", " eight", " Nine", " ten", " eleven", " twelve", " thirteen", " fourteen", "fifteen", " sixteen", " seventeen", " eighteen", " nineteen" }; String ten[] = {" ", " ", " twenty", " thirty", " forty", " fifty", " sixty", "seventy", " eighty", " ninety"}; if (n > 19) { System.out.print(ten[n / 10] + " " + one[n % 10]); } else { System.out.print(one[n]); } if (n > 0) { System.out.print(ch); } } public static void main(String[] args) { int n = 0; Scanner s = new Scanner(System.in); System.out.print("Enter an integer number: "); n = s.nextInt(); if (n <= 0) { System.out.print("Enter numbers greater than 0"); } else { NumberToWord a = new NumberToWord(); System.out.print("After conversion number in words is :"); a.numberToword((n / 1000000000), " Hundred"); a.numberToword((n / 10000000) % 100, " crore"); a.numberToword(((n / 100000) % 100), " lakh"); a.numberToword(((n / 1000) % 100), " thousand"); a.numberToword(((n / 100) % 10), " hundred"); a.numberToword((n % 100), " "); } } } 

this might help

 public String numberToWords(long number) { if (number == 0) { return "zero"; } if (number < 0) { return "minus " + numberToWords(Math.abs(number)); } String words = ""; if ((number / 10000000) > 0) { words += numberToWords(number / 10000000) + " Crore "; number %= 10000000; } if ((number / 100000) > 0) { words += numberToWords(number / 100000) + " Lakh "; number %= 100000; } if ((number / 1000) > 0) { words += numberToWords(number / 1000) + " Thousand "; number %= 1000; } if ((number / 100) > 0) { words += numberToWords(number / 100) + " Hundred "; number %= 100; } if (number > 0) { if (!words.equals("")) { words += "and "; } if (number < 20) { words += number; } else { words += (number); if ((number % 10) > 0) { words += "-" + (number % 10); } } } return words; } 

You probably don’t need this any more, but I recently wrote a java class to do this. Apparently Yanick Rochon did something similar. It will convert numbers up to 999 Novemdecillion (999*10^60). It could do more if I knew what came after Novemdecillion, but I would be willing to bet it’s unnecessary. Just feed the number as a string in cents. The output is also grammatically correct.

Here is a link to the Bitbucket Repo

The same accepted answer (Jigar Joshi), but now in Spanish. Feel free to change this if you find a mistake. Easier than french, but based on that though….

Spanish:

 import java.text.*; class SpanishNumberToWords { private static final String[] tensNames = { "", "", "veinte", "treinta", "cuarenta", "cincuenta", "sesenta", "setenta", "ochenta", "noventa" }; private static final String[] unitNames1 = { "", "un", "dos", "tres", "cuatro", "cinco", "seis", "siete", "ocho", "nueve", "diez", "once", "doce", "trece", "catorce", "quince", "dieciseis", "diecisiete", "dieciocho", "diecinueve", "veinte", "veintiun", "veintidos", "veintitres", "veinticuatro", "veinticinco", "veintiseis", "veintisiete", "veintiocho", "veintinueve", }; private static final String[] unitNames2 = { "", "", "dosc", "tresc", "cuatroc", "quin", "seisc", "setec", "ochoc", "novec", "diez" }; private SpanishNumberToWords() {} private static String convertZeroToHundred(int number) { int theTens = number / 10; int theUnit = number % 10; String result = ""; // separator String theSeparator = ""; if (theTens > 1) { theSeparator = " y "; } // particular cases switch (theUnit) { case 0: theSeparator = ""; break; default: } // tens in letters switch (theTens) { case 0: result = unitNames1[theUnit]; break; case 1: case 2: result = unitNames1[theTens*10+theUnit]; break; default : result = tensNames[theTens] + theSeparator + unitNames1[theUnit]; } return result; } private static String convertLessThanOneThousand(int number) { int theHundreds = number / 100; int leReste = number % 100; String sReste = convertZeroToHundred(leReste); String result; switch (theHundreds) { case 0: result = sReste; break; case 1 : if (leReste > 0) { result = "ciento " + sReste; } else { result = "cien"; } break; default : if (leReste > 0) { result = unitNames2[theHundreds] + "ientos " + sReste; } else { result = unitNames2[theHundreds] + "ientos"; } } return result; } public static String convert(long number) { // 0 à 999 999 999 999 if (number == 0) { return "cero"; } String snumber = Long.toString(number); // pad des "0" String mask = "000000000000"; DecimalFormat df = new DecimalFormat(mask); snumber = df.format(number); // XXXnnnnnnnnn int theMilliards = Integer.parseInt(snumber.substring(0,3)); // nnnXXXnnnnnn int theMillions = Integer.parseInt(snumber.substring(3,6)); // nnnnnnXXXnnn int theCentMiles = Integer.parseInt(snumber.substring(6,9)); // nnnnnnnnnXXX int lesMille = Integer.parseInt(snumber.substring(9,12)); String tradMilliards; switch (theMilliards) { case 0: tradMilliards = ""; break; case 1 : tradMilliards = convertLessThanOneThousand(theMilliards) + " mil millones "; break; default : tradMilliards = convertLessThanOneThousand(theMilliards) + " mil millones "; } String resultat = tradMilliards; String tradMillions; switch (theMillions) { case 0: tradMillions = ""; break; case 1 : tradMillions = convertLessThanOneThousand(theMillions) + " millon "; break; default : tradMillions = convertLessThanOneThousand(theMillions) + " millones "; } resultat = resultat + tradMillions; String tradCentMille; switch (theCentMiles) { case 0: tradCentMille = ""; break; case 1 : tradCentMille = "mil "; break; default : tradCentMille = convertLessThanOneThousand(theCentMiles) + " mil "; } resultat = resultat + tradCentMille; String tradMille; tradMille = convertLessThanOneThousand(lesMille); resultat = resultat + tradMille; return resultat; } public static void main(String[] args) { System.out.println("*** " + SpanishNumberToWords.convert(0)); System.out.println("*** " + SpanishNumberToWords.convert(1)); System.out.println("*** " + SpanishNumberToWords.convert(2)); System.out.println("*** " + SpanishNumberToWords.convert(3)); System.out.println("*** " + SpanishNumberToWords.convert(4)); System.out.println("*** " + SpanishNumberToWords.convert(5)); System.out.println("*** " + SpanishNumberToWords.convert(7)); System.out.println("*** " + SpanishNumberToWords.convert(12)); System.out.println("*** " + SpanishNumberToWords.convert(16)); System.out.println("*** " + SpanishNumberToWords.convert(19)); System.out.println("*** " + SpanishNumberToWords.convert(21)); System.out.println("*** " + SpanishNumberToWords.convert(24)); System.out.println("*** " + SpanishNumberToWords.convert(28)); System.out.println("*** " + SpanishNumberToWords.convert(29)); System.out.println("*** " + SpanishNumberToWords.convert(30)); System.out.println("*** " + SpanishNumberToWords.convert(31)); System.out.println("*** " + SpanishNumberToWords.convert(42)); System.out.println("*** " + SpanishNumberToWords.convert(71)); System.out.println("*** " + SpanishNumberToWords.convert(72)); System.out.println("*** " + SpanishNumberToWords.convert(80)); System.out.println("*** " + SpanishNumberToWords.convert(81)); System.out.println("*** " + SpanishNumberToWords.convert(89)); System.out.println("*** " + SpanishNumberToWords.convert(90)); System.out.println("*** " + SpanishNumberToWords.convert(91)); System.out.println("*** " + SpanishNumberToWords.convert(97)); System.out.println("*** " + SpanishNumberToWords.convert(100)); System.out.println("*** " + SpanishNumberToWords.convert(101)); System.out.println("*** " + SpanishNumberToWords.convert(110)); System.out.println("*** " + SpanishNumberToWords.convert(120)); System.out.println("*** " + SpanishNumberToWords.convert(200)); System.out.println("*** " + SpanishNumberToWords.convert(201)); System.out.println("*** " + SpanishNumberToWords.convert(232)); System.out.println("*** " + SpanishNumberToWords.convert(999)); System.out.println("*** " + SpanishNumberToWords.convert(521)); System.out.println("*** " + SpanishNumberToWords.convert(912)); System.out.println("*** " + SpanishNumberToWords.convert(999)); System.out.println("*** " + SpanishNumberToWords.convert(1000)); System.out.println("*** " + SpanishNumberToWords.convert(1001)); System.out.println("*** " + SpanishNumberToWords.convert(10000)); System.out.println("*** " + SpanishNumberToWords.convert(10001)); System.out.println("*** " + SpanishNumberToWords.convert(100000)); System.out.println("*** " + SpanishNumberToWords.convert(267578)); System.out.println("*** " + SpanishNumberToWords.convert(3000000000L)); System.out.println("*** " + SpanishNumberToWords.convert(2147483647)); /* *** OUTPUT *** cero *** un *** dos *** tres *** cuatro *** cinco *** siete *** doce *** dieciseis *** diecinueve *** veintiun *** veinticuatro *** veintiocho *** veintinueve *** treinta *** treinta y un *** cuarenta y dos *** setenta y un *** setenta y dos *** ochenta *** ochenta y un *** ochenta y nueve *** noventa *** noventa y un *** noventa y siete *** cien *** ciento un *** ciento diez *** ciento veinte *** doscientos *** doscientos un *** doscientos treinta y dos *** novecientos noventa y nueve *** quinientos veintiun *** novecientos doce *** novecientos noventa y nueve *** mil *** mil un *** diez mil *** diez mil un *** cien mil *** doscientos sesenta y siete mil quinientos setenta y ocho *** tres mil millones *** dos mil millones ciento cuarenta y siete millones cuatrocientos ochenta y tres mil seiscientos cuarenta y siete */ } 
 class NumberToWord { private static Map numbers = new HashMap(); private static Set numberSet = new TreeSet(new Comparator() { public int compare(Integer o1, Integer o2) { return o2 - o1; } }); static { init(); numberSet.addAll(numbers.keySet()); } public static void main(String[] args) { System.out.println(getNumberInWord(1898765)); } /* * convert positive numbers in word format number > 0 only */ static String getNumberInWord(int number) { StringBuilder word = new StringBuilder(); for (Integer n : numberSet) { if (number > 0 && number >= n) { int div = number / n; String strNum = numbers.get(div); if (strNum == null) { word.append(getNumberInWord(div)); } // for less than 100, we don't need to say 1 if (strNum != null && (div > 1 || n > 100)) word.append(strNum + " "); word.append(numbers.get(n) + " "); number = number % n; } } return word.toString(); } static void init() { numbers.put(0, "Zero"); numbers.put(1, "One"); numbers.put(2, "Two"); numbers.put(3, "Three"); numbers.put(4, "Four"); numbers.put(5, "Five"); numbers.put(6, "Six"); numbers.put(7, "Seven"); numbers.put(8, "Eight"); numbers.put(9, "Nine"); numbers.put(10, "Ten"); numbers.put(11, "Eleven"); numbers.put(12, "Twelve"); numbers.put(13, "Thirteen"); numbers.put(14, "Fourteen"); numbers.put(15, "Fifteen"); numbers.put(16, "Sixteen"); numbers.put(17, "Seventeen"); numbers.put(18, "Eighteeen"); numbers.put(19, "Nineteen"); numbers.put(20, "Twenty"); numbers.put(30, "Thirty"); numbers.put(40, "Forty"); numbers.put(50, "Fifty"); numbers.put(60, "Sixty"); numbers.put(70, "Seventy"); numbers.put(80, "Eighty"); numbers.put(90, "Ninty"); numbers.put(100, "Hundred"); numbers.put(1000, "Thousand"); numbers.put(1000000, "Million"); numbers.put(100000000, "Billion"); } } 

I’ve developed a Java component to convert given number into words. All you’ve to do is – just copy the whole class from Java program to convert numbers to words and paste it in your project.

Just invoke it like below

 Words w = Words.getInstance(1234567); System.out.println(w.getNumberInWords()); 

My program supports up to 10 million. If you want, you can still extend this. Just below the example output

 2345223 = Twenty Three Lakh Fourty Five Thousand Two Hundred Twenty Three 9999999 = Ninety Nine Lakh Ninety Nine Thousand Nine Hundred Ninety Nine 199 = One Hundred Ninety Nine 10 = Ten 

Grazie

Santhosh

 /* This program will print words for a number between 0 to 99999*/ public class NumberInWords5Digits { static int testcase1 = 93284; public static void main(String args[]){ NumberInWords5Digits testInstance = new NumberInWords5Digits(); String result = testInstance.inWords(testcase1); System.out.println("Result : "+result); } //write your code here public String inWords(int num){ int digit = 0; String word = ""; int temp = num; while(temp>0) { if(temp%10 >= 0) digit++; temp = temp/10; } if(num == 0) return "zero"; System.out.println(num); if(digit == 1) word = inTens(num, digit); else if(digit == 2) word = inTens(num, digit); else if(digit == 3) word = inHundreds(num, digit); else if(digit == 4) word = inThousands(num, digit); else if(digit == 5) word = inThousands(num, digit); return word; } public String inTens(int num, int digit){ int tens = 0; int units = 0; if(digit == 2) { tens = num/10; units = num%10; } String unit = ""; String ten = ""; String word = ""; if(num == 10) {word = "ten"; return word;} if(num == 11) {word = "eleven"; return word;} if(num == 12) {word = "twelve"; return word;} if(num == 13) {word = "thirteen"; return word;} if(num == 14) {word = "fourteen"; return word;} if(num == 15) {word = "fifteen"; return word;} if(num == 16) {word = "sixteen"; return word;} if(num == 17) {word = "seventeen"; return word;} if(num == 18) {word = "eighteen"; return word;} if(num == 19) {word = "nineteen"; return word;} if(units == 1 || num == 1) unit = "one"; else if(units == 2 || num == 2) unit = "two"; else if(units == 3 || num == 3) unit = "three"; else if(units == 4 || num == 4) unit = "four"; else if(units == 5 || num == 5) unit = "five"; else if(units == 6 || num == 6) unit = "six"; else if(units == 7 || num == 7) unit = "seven"; else if(units == 8 || num == 8) unit = "eight"; else if(units == 9 || num == 9) unit = "nine"; if(tens == 2) ten = "twenty"; else if(tens == 3) ten = "thirty"; else if(tens == 4) ten = "forty"; else if(tens == 5) ten = "fifty"; else if(tens == 6) ten = "sixty"; else if(tens == 7) ten = "seventy"; else if(tens == 8) ten = "eighty"; else if(tens == 9) ten = "ninety"; if(digit == 1) word = unit; else if(digit == 2) word = ten + " " + unit; return word; } //inHundreds(525, 3) public String inHundreds(int num, int digit){ int hundreds = num/100; // =5 int tensAndUnits = num%100; // =25 String hundred = ""; String tenAndUnit = ""; String word = ""; tenAndUnit = inTens(tensAndUnits, 2); if(hundreds == 1) hundred = "one hundred"; else if(hundreds == 2) hundred = "two hundred"; else if(hundreds == 3) hundred = "three hundred"; else if(hundreds == 4) hundred = "four hundred"; else if(hundreds == 5) hundred = "five hundred"; else if(hundreds == 6) hundred = "six hundred"; else if(hundreds == 7) hundred = "seven hundred"; else if(hundreds == 8) hundred = "eight hundred"; else if(hundreds == 9) hundred = "nine hundred"; word = hundred + " " + tenAndUnit; return word; } public String inThousands(int num, int digit){ int thousands = 0; int hundredsAndOthers = num%1000; String thousand = ""; String hundredAndOther = ""; String word = ""; if(digit == 5) { thousands = num/1000; thousand = inTens(thousands, 2); } else if(digit == 4) { thousands = num/1000; thousand = inTens(thousands, 1); } if(hundredsAndOthers/100 == 0) // in case of "023" hundredAndOther = inTens(hundredsAndOthers, 2); else hundredAndOther = inHundreds(hundredsAndOthers, 3); word = thousand + " thousand " + hundredAndOther; return word; } } 
 import java.lang.*; import java.io.*; public class rupee { public static void main(String[] args)throws IOException { int len=0,revnum=0,i,dup=0,j=0,k=0; int gvalue; String[] ones={"one","Two","Three","Four","Five","Six","Seven","Eight","Nine","Eleven","Twelve","Thirteen","Fourteen","Fifteen","Sixteen","Seventeen","Eighteen","Nineteen",""}; String[] twos={"Ten","Twenty","Thirty","Fourty","fifty","Sixty","Seventy","eighty","Ninety",""}; System.out.println("\n Enter value"); InputStreamReader b=new InputStreamReader(System.in); BufferedReader br=new BufferedReader(b); gvalue=Integer.parseInt(br.readLine()); if(gvalue==10) System.out.println("Ten"); else if(gvalue==100) System.out.println("Hundred"); else if(gvalue==1000) System.out.println("Thousand"); dup=gvalue; for(i=0;dup>0;i++) { revnum=revnum*10+dup%10; len++; dup=dup/10; } while(j10&&gvalue<=19) { System.out.println(ones[gvalue-2]); break; } else if(gvalue>19&&gvalue<100) { k=gvalue/10; gvalue=gvalue%10; System.out.println(twos[k-1]); } else if(gvalue>100&&gvalue<1000) { k=gvalue/100; gvalue=gvalue%100; System.out.println(ones[k-1] +"Hundred"); } else if(gvalue>=1000&&gvalue<9999) { k=gvalue/1000; gvalue=gvalue%1000; System.out.println(ones[k-1]+"Thousand"); } else if(gvalue>=11000&&gvalue<=19000) { k=gvalue/1000; gvalue=gvalue%1000; System.out.println(twos[k-2]+"Thousand"); } else if(gvalue>=12000&&gvalue<100000) { k=gvalue/10000; gvalue=gvalue%10000; System.out.println(ones[gvalue-1]); } else { System.out.println(""); } j++; } } } 

I implemented it like this

 package com.stack.overflow.number.in.english; import java.util.ResourceBundle; public class ActualImplementation { public static ResourceBundle readPropertyFile = ResourceBundle .getBundle("NumberEnglishRepresentation"); public static void main(String[] args) { System.out.println(ActualImplementation.main(-2)); } public static String main(Integer number) { int power; // Calculate Number of digits Integer numberOfDigits = number > 0 ? (int) Math.log10((double) number) + 1 : 1; String output = ""; // If number is negative convert it to positive an append minus to // output if (Integer.signum(number) == -1) { output = "minus "; number = number < 0 ? number * -1 : number; } String stringVal = String.valueOf(number); if (number <= 20 || number == 30 || number == 40 || number == 50 || number == 60 || number == 70 || number == 80 || number == 90 || number == 100 || number == 1000) output += readPropertyFile.getString(stringVal); else { int i; for (i = 0; i < numberOfDigits; i++) { if (number != 0) { numberOfDigits = number > 0 ? (int) Math .log10((double) number) + 1 : 1; power = (int) Math.pow(10, numberOfDigits - 1); // If number is like 10,001 then print ten first and then // remaining value if (numberOfDigits >= 5 && numberOfDigits % 2 == 1) { power = (int) Math.pow(10, numberOfDigits - 2); } if (readPropertyFile.containsKey(String.valueOf(number))) output += readPropertyFile.getString(String .valueOf(number)); else { // As the digits at units and tens place are read // differently if (numberOfDigits > 2) { output += readPropertyFile.getString(String .valueOf(number / power)) + readPropertyFile.getString(String .valueOf(power)); } else { output += readPropertyFile.getString(String .valueOf(number - number % power)); } } number = (int) (number % power); } } } return output; } } 

and the resource file is :

 0=zero 1=one 2=two 3=three 4=four 5=five 6=six 7=seven 8=eight 9=nine 10=ten 11=eleven 12=twelve 13=thirteen 14=fourteen 15fifteen 16=sixteen 17=seventeen 18=eighteen 19=nineteen 20=twenty 30=thirty 40=fourty 50=fifty 60=sixty 70=seventy 80=eighty 90=ninety 100=hundred 1000=thousand 100000=Lakh 

This one is implemented till 10 lakhs only

 public class NumberConverter { private String[] singleDigit = {"", " one", " two", " three", " four", " five"," six", " seven", " eight", " nine"}; private String[] tens = {" ten", " eleven", " twelve", " thirteen", " fourteen", " fifteen"," sixteen", " seventeen", " eighteen", " nineteen"}; private String[] twoDigits = {"", "", " twenty", " thirty", " forty", " fifty"," sixty", " seventy", " eighty", " ninety"}; public String convertToWords(String input) { long number = Long.parseLong(input); int size = input.length(); if (size <= 3) { int num = (int) number; return handle3Digits(num); } else if (size > 3 && size <= 6) { int thousand = (int)(number/1000); int hundred = (int) (number % 1000); String thousands = handle3Digits(thousand); String hundreds = handle3Digits(hundred); String word = ""; if (!thousands.isEmpty()) { word = thousands +" thousand"; } word += hundreds; return word; } else if (size > 6 && size <= 9) { int million = (int) (number/ 1000000); number = number % 1000000; int thousand = (int)(number/1000); int hundred = (int) (number % 1000); String millions = handle3Digits(million); String thousands = handle3Digits(thousand); String hundreds = handle3Digits(hundred); String word = ""; if (!millions.isEmpty()) { word = millions +" million"; } if (!thousands.isEmpty()) { word += thousands +" thousand"; } word += hundreds; return word; } return "Not implemented yet."; } private String handle3Digits(int number) { if (number <= 0) return ""; String word = ""; if (number/100 > 0) { int dividend = number/100; word = singleDigit[dividend] + " hundred"; number = number % 100; } if (number/10 > 1) { int dividend = number/10; number = number % 10; word += twoDigits[dividend]; } else if (number/10 == 1) { number = number % 10; word += tens[number]; return word; } else { number = number % 10; } if (number > 0) { word += singleDigit[number]; } return word; } } 
  import java.util.Scanner; public class StringToNum { public static void main(String args[]) { Scanner sc=new Scanner(System.in); System.out.println("Enter the no: "); int no=sc.nextInt(); int arrNum[]=new int[10]; int i=0; while(no!=0) { arrNum[i]=no%10; no=no/10; i++; } int len=i; int arrNum1[]=new int[len]; int j=0; for(int k=len-1;k>=0;k--) { arrNum1[j]=arrNum[k]; j++; } StringToNum stn=new StringToNum(); String output=""; switch(len) { case 1: { output+=stn.strNum1(arrNum1[len-1]); System.out.println("output="+output); break; } case 2: { int no1=arrNum1[len-2]*10+arrNum1[len-1]; if(no1>=11 & no1<=19) { output=stn.strNum2(no1); // output=output+" "+stn.strNum1(arrNum1[len-1]); System.out.println("output="+output); } else { arrNum1[len-2]=arrNum1[len-2]*10; output+=stn.strNum2(arrNum1[len-2]); output=output+" "+stn.strNum1(arrNum1[len-1]); System.out.println("output="+output); } break; } case 3: { output=stn.strNum1(arrNum1[len-3])+" hundred "; int no1=arrNum1[len-2]*10+arrNum1[len-1]; if(no1>=11 & no1<=19) { output=stn.strNum2(no1); } else { arrNum1[len-2]=arrNum1[len-2]*10; output+=stn.strNum2(arrNum1[len-2]); output=output+" "+stn.strNum1(arrNum1[len-1]); } System.out.println("output="+output); break; } case 4: { output=stn.strNum1(arrNum1[len-4])+" thousand "; if(!stn.strNum1(arrNum1[len - 3]).equals("")) { output+=stn.strNum1(arrNum1[len-3])+" hundred "; } int no1=arrNum1[len-2]*10+arrNum1[len-1]; if(no1>=11 & no1<=19) { output=stn.strNum2(no1); } else { arrNum1[len-2]=arrNum1[len-2]*10; output+=stn.strNum2(arrNum1[len-2]); output=output+" "+stn.strNum1(arrNum1[len-1]); } System.out.println("output="+output); break; } case 5: { int no1=arrNum1[len-5]*10+arrNum1[len-4]; if(no1>=11 & no1<=19) { output=stn.strNum2(no1)+" thousand "; } else { arrNum1[len-5]=arrNum1[len-5]*10; output+=stn.strNum2(arrNum1[len-5]); output=output+" "+stn.strNum1(arrNum1[len-4])+" thousand "; } if( !stn.strNum1(arrNum1[len - 3]).equals("")) { output+=stn.strNum1(arrNum1[len-3])+" hundred "; } no1 = arrNum1[len - 2] * 10 + arrNum1[len - 1]; if(no1>=11 & no1<=19) { output=stn.strNum2(no1); } else { arrNum1[len-2]=arrNum1[len-2]*10; output+=stn.strNum2(arrNum1[len-2]); output=output+" "+stn.strNum1(arrNum1[len-1]); } System.out.println("output="+output); break; } case 6: { output+=stn.strNum1(arrNum1[len-6])+" million "; int no1=arrNum1[len-5]*10+arrNum1[len-4]; if(no1>=11 & no1<=19) { output+=stn.strNum2(no1)+" thousand "; } else { arrNum1[len-5]=arrNum1[len-5]*10; output+=stn.strNum2(arrNum1[len-5]); output=output+" "+stn.strNum1(arrNum1[len-4])+" thousand "; } if( !stn.strNum1(arrNum1[len - 3]).equals("")) { output+=stn.strNum1(arrNum1[len-3])+" hundred "; } no1 = arrNum1[len - 2] * 10 + arrNum1[len - 1]; if(no1>=11 & no1<=19) { output=stn.strNum2(no1); } else { arrNum1[len-2]=arrNum1[len-2]*10; output+=stn.strNum2(arrNum1[len-2]); output=output+" "+stn.strNum1(arrNum1[len-1]); } System.out.println("output="+output); break; } case 7: { int no1=arrNum1[len-7]*10+arrNum1[len-6]; if(no1>=11 & no1<=19) { output=stn.strNum2(no1)+" Milloin "; } else { arrNum1[len-7]=arrNum1[len-7]*10; output+=stn.strNum2(arrNum1[len-7]); output=output+" "+stn.strNum1(arrNum1[len-6])+" Million "; } no1=arrNum1[len-5]*10+arrNum1[len-4]; if(no1>=11 & no1<=19) { output=stn.strNum2(no1)+" Thousand "; } else { arrNum1[len-5]=arrNum1[len-5]*10; output+=stn.strNum2(arrNum1[len-5]); output=output+" "+stn.strNum1(arrNum1[len-4])+" Thousand "; } if( !stn.strNum1(arrNum1[len - 3]).equals("")) { output+=stn.strNum1(arrNum1[len-3])+" Hundred "; } no1 = arrNum1[len - 2] * 10 + arrNum1[len - 1]; if(no1>=11 & no1<=19) { output=stn.strNum2(no1); } else { arrNum1[len-2]=arrNum1[len-2]*10; output+=stn.strNum2(arrNum1[len-2]); output=output+" "+stn.strNum1(arrNum1[len-1]); } System.out.println("output="+output); break; } } } String strNum1(int a) { String op=""; switch(a) { case 1: { op="one"; break; } case 2: { op="two"; break; } case 3: { op="three"; break; } case 4: { op="four"; break; } case 5: { op="five"; break; } case 6: { op="six"; break; } case 7: { op="seven"; break; } case 8: { op="eight"; break; } case 9: { op="nine"; break; } } return op; } String strNum2(int a) { String op=""; switch(a) { case 10: { op="ten"; break; } case 20: { op="twenty"; break; } case 30: { op="thirty"; break; } case 40: { op="fourty"; break; } case 50: { op="fifty"; break; } case 60: { op="sixty"; break; } case 70: { op="seventy"; break; } case 80: { op="eighty"; break; } case 90: { op="ninty"; break; } case 11: { op="eleven"; break; } case 12: { op="twelve"; break; } case 13: { op="thirteen"; break; } case 14: { op="fourteen"; break; } case 15: { op="fifteen"; break; } case 16: { op="sixteen"; break; } case 17: { op="seventeen"; break; } case 18: { op="eighteen"; break; } case 19: { op="nineteen"; break; } } return op; } } 

I have used 2 dimensional array…

  import java.util.Scanner; public class numberEnglish { public static void main(String args[]) { String[ ][ ] aryNumbers = new String[9][4]; aryNumbers[0][0] = "one"; aryNumbers[0][1] = "ten"; aryNumbers[0][2] = "one hundred and"; aryNumbers[0][3] = "one thousand"; aryNumbers[1][0] = "two"; aryNumbers[1][1] = "twenty"; aryNumbers[1][2] = "two hundred and"; aryNumbers[1][3] = "two thousand"; aryNumbers[2][0] = "three"; aryNumbers[2][1] = "thirty"; aryNumbers[2][2] = "three hundred and"; aryNumbers[2][3] = "three thousand"; aryNumbers[3][0] = "four"; aryNumbers[3][1] = "fourty"; aryNumbers[3][2] = "four hundred and"; aryNumbers[3][3] = "four thousand"; aryNumbers[4][0] = "five"; aryNumbers[4][1] = "fifty"; aryNumbers[4][2] = "five hundred and"; aryNumbers[4][3] = "five thousand"; aryNumbers[5][0] = "six"; aryNumbers[5][1] = "sixty"; aryNumbers[5][2] = "six hundred and"; aryNumbers[5][3] = "six thousand"; aryNumbers[6][0] = "seven"; aryNumbers[6][1] = "seventy"; aryNumbers[6][2] = "seven hundred and"; aryNumbers[6][3] = "seven thousand"; aryNumbers[7][0] = "eight"; aryNumbers[7][1] = "eighty"; aryNumbers[7][2] = "eight hundred and"; aryNumbers[7][3] = "eight thousand"; aryNumbers[8][0] = "nine"; aryNumbers[8][1] = "ninty"; aryNumbers[8][2] = "nine hundred and"; aryNumbers[8][3] = "nine thousand"; //System.out.println(aryNumbers[0] + " "+aryNumbers[0] + " "); int number=0; Scanner sc = new Scanner(System.in); System.out.println(" Enter Number 4 digited number:: "); number = sc.nextInt(); int temp = number; int count=1; String english=""; String tenglish = ""; if(number == 0) { System.out.println("*********"); System.out.println("Zero"); System.out.println("*********"); sc.close(); return; } while(temp !=0) { int r = temp%10; if(r==0) { tenglish = " zero "; count++; } else { int t1=r-1; int t2 = count-1; //System.out.println(t1 +" "+t2); count++; tenglish = aryNumbers[t1][t2]; //System.out.println(aryNumbers[t1][t2]); } english = tenglish +" "+ english; temp = temp/10; } //System.out.println(aryNumbers[0][0]); english = english.replace("ten zero", "ten"); english = english.replace("twenty zero", "twenty"); english = english.replace("thirty zero", "thirty"); english = english.replace("fourty zero", "fourty"); english = english.replace("fifty zero", "fifty"); english = english.replace("sixty zero", "sixty"); english = english.replace("seventy zero", "seventy"); english = english.replace("eighty zero", "eighty"); english = english.replace("ninety zero", "ninety"); english = english.replace("ten one", "eleven"); english = english.replace("ten two", "twelve"); english = english.replace("ten three", "thirteen"); english = english.replace("ten four", "fourteen"); english = english.replace("ten five", "fifteen"); english = english.replace("ten six", "sixteen"); english = english.replace("ten seven", "seventeen"); english = english.replace("ten eight", "eighteen"); english = english.replace("ten nine", "nineteen"); english = english.replace(" zero ", ""); int length = english.length(); String sub = english.substring(length-6,length-3); //System.out.println(length); //System.out.println(sub); if(sub.equals("and")) { //System.out.println("hello"); english=english.substring(0,length-6); } System.out.println("********************************************"); System.out.println(english); System.out.println("********************************************"); sc.close(); } 

}